United States, Nov. 21 -- Today's geopolitical environment and rapidly evolving threats are causing allied nations to determine ways to maintain the sovereignty of their data and eliminate their reliance on information sharing by other countries. One route that many are choosing to follow is the creation of in-country Ultra-High Frequency (UHF) satellites and sovereign UHF Network Control Stations (NCSs) that enable more efficient voice and data transmission. Most recently, Viasat worked with the Spanish Ministry of Defence (MoD) to install two redundant NCSs to support two satellites, SpainSat NG I and SpainSat NG II. One ground station controls the UHF Time Domain Multiple Access (TDMA) networks - while the other ground station serves as ...